“burz– “dark” / wur– “to see” in fact, but the root is present in wurikk– “to be blind” and really would express something opposite to “see, seeable” with any negative particle, while there is a particle z in Hurrian with the possible meaning “to be at the very limit of, up to the end of, complete”. So wur + z could really give the meaning “where the seeing is near/at its limits” – of course not Hurrian as such, but a quite possible “play” of any linguist with the Hurrian material.”